CN106031072A - Harq frame data structure and method of transmitting and receiving with harq in systems using blind detection - Google Patents
Harq frame data structure and method of transmitting and receiving with harq in systems using blind detection Download PDFInfo
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- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000004891 communication Methods 0.000 description 24
- 230000008569 process Effects 0.000 description 17
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
- H04L1/0038—Blind format detection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0041—Arrangements at the transmitter end
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0061—Error detection codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/007—Unequal error protection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0072—Error control for data other than payload data, e.g. control data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
- H04L1/0079—Formats for control data
- H04L1/008—Formats for control data where the control data relates to payload of a different packet
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1835—Buffer management
- H04L1/1845—Combining techniques, e.g. code combining
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/188—Time-out mechanisms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1896—ARQ related signaling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Communication Control (AREA)
Abstract
A HARQ frame data structure and methods of transmitting and receiving with HARQ in systems using blind detection are provided. In one embodiment, a method of transmitting over a channel using HARQ includes transmitting a first frame containing data toward a blind detection receiver, and transmitting a second frame containing at least a portion of the data and information about the first frame toward the blind detection receiver.
Description
CROSS REFERENCE TO RELATED application
This application claims in invention entitled " a kind of HARQ frame data that on February 18th, 2014 submits
Structure and in the system using blind check, use the HARQ method that is transmitted and receives " the
The earlier application priority of No. 14/183219 U.S. patent application case, the content of this earlier application is to introduce
Mode be expressly incorporated herein.
Technical field
The present invention relates generally to a kind of hybrid automatic repeat-request (hybrid automatic repeat request,
HARQ) frame data structure and the method that is transmitted by HARQ and blind check and received, specifically
In embodiment, relate to a kind of network interface controller (network interface controller, NIC) with
And pass through the method that HARQ is transmitted on channel and receives.
Background technology
Many communication systems utilize blind check to reduce expense.In the case of not using blind check, communication system is led to
Cross extra signaling to set up and coordinating transmissions.In the case of using blind check, it is not necessary to need by extra letter
The transmission of frame is set up in order, or indicates the characteristic of this transmission, such as, tune used in this transmission to receptor
System and the type encoded.Before transmission arbitrary frame, this system can use the setting of general transmission characteristic.
Blind check receptor be generally characterised in that powerful computing capability, it is sufficient to detection with decode time attempt multiple
Possible transmission characteristic.
Many transmission systems, especially wireless system, use some form of re-transmission to carry out improving performance, tool
Body is referred to as HARQ.In transmission for the first time, emitter is to the data bit of receptor transmission coding.Reason
In the case of thinking, this receptor can detect and decode transmission, generally reception confirmation is sent to emitter.When
When this receptor can not detect and decode transmission, in HARQ system, this emitter retransmits at least portion
Lacing code bit.Then, this re-transmission is merged to be decoded by this receptor with the transmission of this first time.Pass through
Add the multiple technologies such as merging or incremental redundancy and be capable of the merging of two or more transmission.
Blind check and HARQ are so that some communication system promotes the example of systematic function and the technology of efficiency.
Summary of the invention
Embodiments provide and be transmitted by HARQ in the system using blind check and receive
Method and application HARQ frame data structure NIC.
In one embodiment, include to comprise data in the method for channel by HARQ
First frame is transferred to use the receptor of blind check agreement, and transmits to the receptor of described employing blind check agreement
Comprise the second frame of the information of at least part of described data and described first frame.
In another embodiment, the method received on channel by HARQ includes being detected by blind check
With the first frame that trial decoding comprises data；At least part of described data and described are comprised by blind check detection
Second frame of the information of the first frame；Decode the information of described first frame and by described Information application in association institute
State the first frame and described at least part of data and be merged into combined frames；Decode described combined frames.
In another embodiment, NIC includes memorizer, is used for storing HARQ frame data structure.
HARQ frame data structure includes the data field of encoded data bits and the header field of the information of the first frame.
Described NIC also includes processor, itself and described memorizer and Emitter-coupling, is used for: calculate described
The cyclic redundancy check (CRC) (cyclic redundancy check, CRC) of data field.Additionally, described place
Described first frame that reason device comprises described data field and described CRC for making described emitter transmit.
Described processor is additionally operable to fill described header field, calculates for described data field and described header field
At least one CRC, and make described emitter transmission comprise described data field, described header field and
Second frame of at least one CRC described.
In another embodiment, NIC includes blind check receptor, for receiving the first frame and the second frame.Institute
State the first frame and at least include data field.Described second frame includes at least part of of header and described first frame
Described data field.Described NIC also includes processor and decoder, is used for attempting decoding described first frame
And decode the described header of described second frame.Described header includes the information of described first frame.Described place
Reason device is used for the Information application of described first frame in associating described first frame and described second frame and by described
Part data field and described first frame merge into combined frames.
Accompanying drawing explanation
In order to be more fully understood from the present invention and advantage thereof, with reference now to the description carried out below in conjunction with accompanying drawing,
Wherein:
Fig. 1 is the block diagram of an embodiment of NIC；
Fig. 2 is the block diagram of another embodiment of NIC；
Fig. 3 is the block diagram of an embodiment of calculating system；
Fig. 4 is the flow chart of an embodiment of the method being transmitted by HARQ；
Fig. 5 is the flow chart of another embodiment of the method being transmitted by HARQ；
Fig. 6 is the flow chart of an embodiment of the method being received with blind check by HARQ；
Fig. 7 is the flow chart of another embodiment of the method being received with blind check by HARQ；
Fig. 8 is the flow chart of the another embodiment of the method being received with blind check by HARQ；
Fig. 9 is the block diagram of an embodiment of wireless communication system.
Detailed description of the invention
Making and the use of embodiment are discussed in detail below.It is to be understood that the many that the present invention provides is fitted
May be implemented in multiple specific environment by inventive concept.The specific embodiment discussed is merely illustrative in order to reality
Execute and use the concrete mode of the present invention, and do not limit the scope of the invention.
Channel is divided into Resource Unit (resource unit, RU), these Resource Unit tables by communication system
Show the time, frequency, space, coding, pilot frequency sequence or other make the characteristic that distinguishes mutually between signal, or
Difference between the combination in any of these characteristics.One or more RU are distributed to subscriber equipment (user
Equipment, UE) to perform communication.When the UE in system is fewer than RU, this system can be passed through
Firmly distribute and RU is distributed to each UE.Under hard distribution condition, RU is distributed to single UE, because of
This, the understanding to the RU of Setting signal is actually the understanding to source UE.When the UE ratio in system
When RU is many, this system is by soft distribution distribution RU, it means that RU can distribute to multiple UE.
Under soft distribution condition, UE uses to keep out of the way and collide and the arbitration scheme such as avoids to realize the reception of frame.This
Outward, the mark of UE is typically to comprise in the transmission.
Herein, it will be appreciated that, use the system of blind check generally can not use HARQ.
HARQ protocol uses the concept of affairs, and wherein, the transmission of single frames is corresponding with affairs.Frame is for transmission standard
Standby position set.This frame can comprise multiple field, including data field, header field, pilot field,
Cyclic redundancy check (CRC) (cyclic redundancy check, CRC) and other fields.In HARQ system
In system, UE retransmission frame is until this frame is identified, thus realizes the effective operation to system upper strata.When
When once transmitting and retransmit connection for single affairs, transmission for the first time can be merged and retransmit, these single affairs
Identified by number of frames.Such as, in Long Term Evolution (long term evolution, LTE) system,
This number of frames is that UE identifies (identifier, ID) and the combination of HARQ process ID, according to biography
Defeated timing indicates this number of frames.Herein, it will be appreciated that, even if as known this source UE,
In the case of the serial number of the frame of unknown decoding, receptor can not be merged by future frame and decode coding
Frame.Therefore, herein it is to be appreciated that HARQ needs some form of frame identification.
In HARQ system, if not decoding the transmission of this first time, then decoding do not known by this receptor
The serial number of frame.The HARQ system using hardware resources distribution typically uses the HARQ of Stop And Wait,
Wherein, emitter transmission frame and etc. to be confirmed.In such systems, HARQ process can be without explicit frame
Perform in the case of mark, because only existing the frame affairs that this HARQ process processes.At these
In system, this frame identification is implied in the resource used in transmission, or implies in the most only one frame of transmission
In the fact that of middle.Use soft resources distribution HARQ system in, once identify this source UE and
Number of frames, just can perform HARQ process, and this typically requires decoding second time completely and transmits or some
Extra signaling.
In the system using blind check, each possible UE of this receptor blind check is until this receptor finds
This emitter or source UE, and decode this number of frames.When this first time, transmission can not be successfully decoded,
There is no extraneous information, the source UE of such as this transmission for the first time and this number of frames of this transmission for the first time
Time, transmission for the first time can not be merged by this receptor with re-transmission or other future frames.Herein it is to be appreciated that
When retransmitting the information comprising the transmission of this first time, in blind check system, HARQ can realize,
Wherein, the information of this transmission for the first time allows this transmission for the first time and this re-transmission connection is single affairs.
Fig. 1 is the block diagram of an embodiment of NIC 100.NIC 100 includes coupleding to bus 170
Memorizer 110, memorizer 130, emitter 140, encoder 150 and processor 160.At some
In embodiment, memorizer 110 and memorizer 130 can be the independent sector in single storage device.Can
In alternative embodiment, memorizer 110 and memorizer 130 are independent storage devices.Bus 170 can
For parallel bus, the most peripheral parts interconnected (peripheral component interconnect, PCI)
And small computer system interface (small computer system interface, SCSI) etc..At it
In his embodiment, bus 170 is universal serial bus, such as Serial Advanced Technology Attachment (serial advanced
Technology attachment, SATA) and USB (universal serial bus) (universal serial bus, USB)
Deng.Bus 170 allows memorizer 110, memorizer 130, emitter 140, encoder 150 and place
Communication between reason device 160.
Encoder 150 can be run and receive data bit as input, and encode these positions and be transmitted.Deposit
Reservoir 130 is used for storing encoded data bits 132.Encoded data bits 132 is as encoder 150
Output generates, and writes memorizer 130 by bus 170.Processor 160 is for by bus 170
Access the encoded data bits 132 in memorizer 130, and be to prepare to compile by the transmission of emitter 140
Code data bit.Emitter 140 is as the interface of NIC 100 to channel.Emitter 140 can be run
For receiving frame by the transmission of bus 170, and transmit this frame by the RU of distribution.
Memorizer 110 is used for storing HARQ frame data structure 120, and wherein, this structure includes header
122, header CRC 124, data field 126 and data CRC 128.Memorizer 110 can be each
The storage of type, including: random access memory (random access memory, RAM) example
Such as dynamic random access memory (dynamic RAM, DRAM) and static RAM
(static RAM, SRAM).Memorizer 110 can also be the storage of other forms, such as flash memory.
Processor 160 performs HARQ process for the RU for this channel and this distribution.In this process,
Processor 160 accesses the encoded data bits 132 in memorizer 130 by bus 170, and makes to compile
Data field 126 in code set of data bits write HARQ frame data structure 120.Then, process
Device 160 is that this encoded data bits set calculates CRC, and is write by CRC by bus 170
Data CRC 128 in HARQ frame data structure 120.Processor 160 makes the first time of frame transmit
Carried out to blind check receptor by emitter 140.Frame in the transmission of described first time comprises from data word
Data CRC 128 in the position of section 126 and HARQ frame data structure 120.Described first time transmits
Or by the confirmation of described blind check receptor or be not identified.If being identified, it is in memorizer 130 then
The new encoded data bits set of encoded data bits 132 repeats this process.If not being identified, process
By this HARQ process, device 160 decides whether that carrying out second time transmits or retransmit.Real at some
Executing in example, after transmitting according to this first time, the time of passage carries out this judgement.Processor 160 can include fixed
Time device, this intervalometer starts timing when this first time transmits, and is setting according to this HARQ process
Duration time-out after stop.
When the timer expires, processor 160 judges that second time transmission is necessary.Implement at some
In example, the encoded data bits set in the data field 126 that processor 160 includes and described first frame
In encoded data bits set identical.In other embodiments, during processor 160 includes the second frame
A part for bits of coded set in this first frame.In certain embodiments, if this emitter and reception
Device both knows about rule of punching accordingly, selects bit can include that bit punches for retransmitting.Enforcement at Fig. 1
In example, processor 160 generates the header of the information including this first frame, and makes this information pass through bus
Header 122 in 170 write HARQ frame data structures 120.The information of this first frame can include identifying
The multifrequency nature of this first frame, including RU used, time used or frequency resource, this first frame
Modulation and coding and number of frames.In certain embodiments, this HARQ frame data structure also wraps
Include the pilot frequency sequence being additional to this first frame.In these embodiments, the information of this first frame can include this
The mark of this pilot frequency sequence included in the first frame.This pilot frequency sequence is known to this emitter and receptor
For identifying the physical layer symbols of particular UE or transmission.Such as, this pilot frequency sequence can be quadrature amplitude
Point in modulation (quadrature amplitude modulation, QAM) constellation or special time signal.
Processor 160 is for calculating CRC for the encoded data bits in this header and data field 126.
This CRC can be the CRC that this header and encoded data bits are shared, it is also possible to be independent CRC:
The header CRC being stored in header CRC 124 and data CRC being stored in data CRC 128.
In certain embodiments, the CRC of this encoded data bits by these affairs all before transmission
Position calculate, these affairs include this encoded data bits set and, in certain embodiments, including
It is additional to any header of this first frame.Processor 160 modulation encoded headers 122, in order to by sending out
Emitter 140 is transmitted.Except other baseband modulation technique any, modulation can include extension, the most orthogonal
Frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) and single carrier
Modulation.In certain embodiments, for the modulation of header 122 and coding be applied to the tune of this first frame
Make different with coding.In certain embodiments, for header 122 modulation and coding be applied to data
The modulation of field 126 is different with coding.The second frame that then, processor 160 makes to comprise header 122,
Header CRC 124, data field 126 and data CRC 128 pass to emitter by bus 170
140.Then, this second frame is transferred to blind check receptor by emitter 140.
Fig. 2 is the block diagram of another embodiment of NIC 200.NIC 200 includes coupleding to bus 250
Memorizer 210, decoder 220, receptor 230 and processor 240.Bus 250 can be parallel total
Line, the most peripheral parts interconnected (peripheral component interconnect, PCI) and small-sized
Computer system interface (small computer system interface, SCSI) etc..In other embodiments
In, bus 250 is universal serial bus, such as Serial Advanced Technology Attachment (serial advanced
Technology attachment, SATA) and USB (universal serial bus) (universal serial bus, USB)
Deng.Bus 250 allow memorizer 210, decoder 220, receptor 230 and processor 240 it
Between communication.
Receptor 230, as the interface of NIC 200 to channel, wherein, is examined by blind check on this channel
Survey transmission for the first time.The transmission of this first time includes comprising first frame of encoded data bits and CRC.Solve
Code device 220 is attempted decoding this first frame.If decoder 220 success, the then CRC in this first frame
Passing through, now, processor 240 will confirm that and is transmitted back to source UE.If decoder 220 is unsuccessful, then should
CRC does not passes through, and this first frame is write memorizer 210 by processor 240.Memorizer 210 is used for storing
First frame 212 and combined frames 214.By bus 250, this first frame is write the first frame 212.At certain
In a little embodiments, it is the first frame 212 according to this source UE and combined frames 214 is indexed.Afterwards, NIC
200 wait the second time transmission comprising the second frame.
This second time that receptor 230 comprises this second frame by blind check detection is transmitted.This second frame comprises
At least one of header, at least part of encoded data bits of this first frame and this header and data
CRC.In certain embodiments, this second frame includes a single CRC and the coded number of this header
A single CRC according to bit.In other embodiments, this header and encoded data bits are shared
One CRC.In the second frame derives from the embodiment of source UE and NIC 200 this source known UE, place
Reason device 240 accesses the first frame 212 in memorizer 210 by bus 250, and by this first frame and should
Second frame merges into combined frames.Afterwards, the write of this combined frames is stored by processor 240 by bus 250
In the combined frames 214 of device 210.Then, decoder 220 accesses combined frames 214 and attempts decoding this group
Close frame.Again verifying the CRC of this combined frames, if passing through, then this frame is identified.
If the source UE of this second frame is unknown, decoder 220 is attempted decoding this header, then to mark
Head CRC verifies.If header CRC does not passes through, then this second frame be considered single affairs rather than
A part for this first frame.If decoder 220 is not successfully decoded this second frame, then this process may
Make this second frame be successfully decoded by decoder 220, or make this second frame be stored in memorizer 210.
When header CRC passes through, from this header, retrieve UE ID and frame identification.Be determined by for this
The RU of two frames can determine that UE ID, or in certain embodiments, by checking UE embedded in CRC
ID can determine that UE ID.Frame identification is the information in this header about this first frame.The information of this first frame
The mark of pilot frequency sequence, this first frame that the RU for this first frame, this first frame include can be included
The coding of middle use and modulation or the number of frames of this first frame.This frame identification permission processor 240 should
First frame and the association of the second frame or connection are single affairs.Can be with operation processor 240 with by this first frame
Merging into combined frames with the second frame, wherein, this combined frames can write combined frames 214.This combined frames is follow-up
Can be decoded by decoder 220.If decoder 220 has been successfully decoded this combined frames and this combined frames
CRC passes through, then processor 240 transmits the confirmation of this frame.
Fig. 3 can be used for realizing the block diagram of the processing system 300 of equipment disclosed by the invention and method.
Particular device can use the subset of shown all of assembly or only these assemblies, and integrated degree can be because setting
Different for difference.Additionally, equipment can comprise multiple examples of assembly, the most multiple processing units,
Processor, memorizer, emitter and receptor etc..This processing system 300 can include processing unit
302, wherein, this processing unit is equipped with one or more input-output apparatus, such as, speaker,
Mike, mouse, touch screen, keypad, keyboard, printer and display etc..This processing unit
Can include being connected to bus 320 central processing unit (central processing unit, CPU) 314,
Memorizer 308, mass-memory unit 304, video card 310 and I/O interface 312.
Described bus 320 can be to include that memory bus or Memory Controller Hub, peripheral bus, video are total
One or more in several any type of bus architecture such as line.This CPU 314 can include any class
The data into electronic data processing of type.Memorizer 308 can include any type system storage, such as, quiet
State random access memory (static random access memory, SRAM), dynamic randon access
Memorizer (dynamic random access memory, DRAM), synchronous dynamic random-access store
Device (synchronous DRAM, SDRAM), read only memory (read-only memory,
Or combinations thereof etc. ROM).In one embodiment, memorizer 308 can include making when starting
ROM and use during the program of execution for storing the DRAM of program and data.
This mass-memory unit 304 can include for storing data, program and other information and making
Obtain these data, program and other information by the addressable any type of storage device of this bus 320.
Such as, this mass-memory unit 304 may include that solid-state drive, hard disk drive, disk drive
One or more in dynamic device, CD drive etc..
This video card 310 and this I/O interface 312 provide interface, to be coupled to by outside input-output equipment
This processing unit 302.As it can be seen, the example of input-output equipment includes coupleding to this video card 310
Display 318 and the mouse/keyboard/printer 316 coupleding to this I/O interface 312.Other equipment are permissible
It coupled to this processing unit 302, and extra or less interface card can be used.Such as, serial interface
Mouth such as USB (universal serial bus) (Universal Serial Bus, USB) (not shown) may be used for
Printer provides interface.
This processing unit 302 also includes one or more network interface 306, and this network interface can include
Wire link such as ethernet line etc., and/or wireless link is with access node or heterogeneous networks.This network
Interface 306 allows this processing unit 302 by network and remote unit communication.Such as, this network interface
306 can be carried by one or more emitters/transmitting antenna and one or more receptor/reception antenna
For radio communication.In one embodiment, this processing unit 302 coupled to LAN 322 or wide area network with
Carry out data process and with the remote equipment communications such as other processing units, the Internet and remote storage facility.
Fig. 4 is the flow chart of an embodiment of the method being transmitted by HARQ.The method from
Start step 410 to start.In first time transmitting step 420, the first frame is transferred to blind check receptor.
This first frame comprises the CRC of encoded data bits and data.In certain embodiments, this first frame lacks
Few header, otherwise, this header then can be used for identification source UE or the RU for transmission.Subsequently,
In secondary transmitting step 430, the second frame is transferred to this blind check receptor.In certain embodiments, exist
When transmitting step 420 starts the timer expiry of timing for the first time, trigger the transmission of this second time.According to
The reception of confirmation of transmission of this first time resets this intervalometer or this timer ends, cause this
Secondary transmits.Receptor can be that RU provides positive or negative to confirm.Receptor can also provide for frame
Positive acknowledgment.Source UE often relies on time detecting this LOF or unconfirmed of passage.
This second frame comprises at least part of encoded data bits comprised in this first frame.In some embodiment
In, all encoded data bits comprised in this first frame are included in this second frame.Implement at other
In example, only part is included in this second frame from the encoded data bits of this first frame.This second frame
Also the header of the information including this first frame is comprised.The information of this first frame can be used for associating this first and
They are also connect for single affairs by two frames.The information of this first frame can include in this first time transmits
RU, the mark of pilot frequency sequence that includes of the number of frames of this first frame, this first frame and for
The modulation of this first frame and coding.
In certain embodiments, in the first frame use this modulation and coding may with for this second frame
The modulation of this header is different with coding.It addition, in certain embodiments, for this header of this second frame
Modulation and coding may be from the modulation of the encoded data bits in this second frame and encode different.
In certain embodiments, this second frame may also comprise at least one CRC.In certain embodiments,
A CRC is calculated for this encoded data bits and this header.In other embodiments, for this header meter
Calculate header CRC, and calculate independent data CRC for this encoded data bits.
When connecting this first frame and this second frame in same affairs, this first frame and this second frame can close
And for combined frames to be decoded.Step 440 is ended at after the method.
Fig. 5 is the flow chart of another embodiment of the method being transmitted by HARQ.The method from
Start step 502 to start.In coding step 504, it is the first frame coding and storage data bit.It
After, calculation code data and the CRC of header this CRC is additional to this first frame in step 506.
Then, in pilot tone inserting step 508, insert pilots in this first frame.Then, at transmitting step
In 510, transmit this first frame to blind check receptor.When transmission, in intervalometer starts step 512
Start and confirm intervalometer.
Afterwards, this UE waits the confirmation from this blind check receptor.In confirming checking procedure 514,
This UE verification have received confirmation the most.The most then the method end step 526 finally.Or,
The method can repeat, from the beginning of reception new data is transmitted.If in confirming checking procedure 514 not
Receive confirmation, then, in time-out checking procedure 516, when time-out, verification confirms intervalometer.If this is true
Recognize intervalometer and have not timed out, then this UE continues waiting for confirming, and returns confirmation checking procedure 514.If
This confirmation intervalometer has timed out, then this UE forwards header generation step 518 to.In header generation step
In 518, it is that the second frame generates header.This header comprises the information of this first frame, and this information can include using
RU in this first frame, the coding for this first frame and modulation, the number of frames of this first frame and
This pilot frequency sequence being included in embodiment in pilot frequency sequence is included in this first frame in this first frame
Mark.In some embodiment using hardware resources distribution, only can pilot identification be inserted in header,
Pilot identification will be the information that be enough to identify this UE in second time transmission.This mark uniquely identifies this
RU before UE use.
In the second frame header CRC calculation procedure 520, calculate CRC and by this CRC for this header
It is additional to this second frame.Then, in coded data selects step 522, select coding for this second frame
This encoded data bits is also additional in this second frame by data bit.Then, in the second frame coded data
In CRC calculation procedure 524, calculate CRC for coded data, and this CRC is additional to this second frame.
Once this second frame is otherwise to assemble, then the method returns pilot tone inserting step 508.
The method also continues with transmitting step 510 to transmit this second frame, and again starts step at intervalometer
Start in 512 and confirm intervalometer.This UE again waits for confirming.This blind check receptor can by this first
Frame merges with this second frame, decodes combined frames, and sends confirmation to this UE；Now, the method can be tied
Restraint in end step 526.Or, this blind check receptor may receive the first frame or the failure of the second frame, or
This combined frames failure may be decoded.Now, when this confirmation timer expiry, other frames can be generated also
This frame is transferred to this blind check receptor.
Fig. 6 is the flow chart of an embodiment of the method being received with blind check by HARQ.Should
Method starts from starting step 610.In the first frame detecting step 620, detect the first frame by blind check,
And attempt decoding.This first frame comprises the CRC of encoded data bits and bits of coded.Implement at some
In example, the method also includes determining source UE for this first frame.Attempt this first frame failure of decoding.At certain
In a little embodiments, afterwards the storage of this first frame in memory and is indexed according to this source UE.
In the second frame detecting step 630, detect the second frame by blind check.This second frame comprise this first
At least part of encoded data bits comprised in frame and the information of this first frame.This encoded data bits bag
It is contained in the data field of this second frame.The information of this first frame is contained in header.The information of this first frame
Potentially include the RU for this first frame, for the modulation of this first frame and coding and this first frame
Number of frames.In certain embodiments, this first frame includes pilot frequency sequence.In those embodiments, should
The information of the first frame can include the mark being contained in this pilot frequency sequence of this first frame.Divide using hardware resources
In some embodiment joined, UE ID is to be enough to identify the information of this UE and unique in second time transmission
Identify the RU before this UE use.
This second frame at least includes a CRC.Can be this header and encoded data bits calculating one
CRC.Or, can be that the header of this second frame calculates a CRC, calculate for encoded data bits another
One CRC.
In decoding step 640, decode this first frame information and by this Information application in association this first
Frame and this second frame.The information of this first frame be also used for merging in this first frame and this first frame comprise to
Small part encoded data bits, to form combined frames.In the second decoding step 650, decoding subsequently should
Combined frames.If the second successfully decoded of this combined frames, in certain embodiments, then send an acknowledgment to this
Source UE.Otherwise, in certain embodiments, when the second decoding step 650 failure, the method forwards to
Attempt as multiple possible source UE decodings.End step 660 is ended at after the method.
Fig. 7 is the flow chart of another embodiment of the method being received with blind check by HARQ.Should
The embodiment of method can be used for using in the HARQ system that soft resources is distributed.The method is from starting step
702 start.In waiting step 704, blind check receptor waits new frame.When new frame arrives, in inspection
Survey and decoding step 706 detect and decodes the header of this new frame.Afterwards, walk in header CRC check
In rapid 708, verify this CRC of this header.
Header CRC passes through or does not passes through.If header CRC does not passes through, then this frame is considered as thing
The first frame in business.In frame detection and decoding step 714, detect and decode this first frame.This is first years old
Frame includes the CRC of encoded data bits and this encoded data bits.In data CRC check step 716
In, verify this CRC.If this CRC does not passes through, according in transmission for the first time in storing step 724
The RU used stores this first frame.Afterwards, this blind check receptor returns to waiting for step 704 to wait separately
One frame.If this CRC passes through in data CRC check step 716, then in searching step 718,
Retrieve UE ID and the number of frames of source UE in the frame.Afterwards, in confirming step 720,
Confirm to receive.End step 722 is ended at after the method.Or, the method can return to waiting step
704 and wait new frame.
If header CRC passes through in header check step 708, afterwards this frame is considered as this first frame
Retransmit.In header searching step 710, from the header of this decoding, retrieve the source UE's of this first frame
UE ID and the number of frames of this first frame.The information of this first frame in this header make this first frame and
This second frame chaining is single affairs.In combining step 712, merge this first frame and this second frame.
Afterwards, the method forwards frame detection and decoding step 714 to.Decoding is attempted for this first frame.If in data
In CRC check step 716, successfully decoded and CRC pass through, then retrieve source UE in searching step 718
UE ID and number of frames, and confirm confirming step 720 sends.
Fig. 8 is the flow chart of the another embodiment of the method being received with blind check by HARQ.Should
The embodiment of method can be used for using in the HARQ system that hardware resources distributes.The method is from starting step
802 start.In waiting step 804, blind check receptor waits new frame.Connect when new frame arrives this blind check
When receiving device, in determining step 806, determine source UE.In checking procedure 808, verification source UE with
Judge whether this blind check receptor knows this source UE.When this source UE is known, at checking procedure 810
In, whether the verification of this blind check receptor exists the frame from the storage in the UE of source.If there is the frame of storage,
This frame is merged by combining step 812 with this new frame.Afterwards, in detection and decoding step 814,
Detect and decode this combined frames.If there is not the frame of the storage from this source UE, then this new frame is transmitted
Give detection and decoding step 814.Or, if the source UE of this new frame is unknown, then this new frame is also moved
To detection and decoding step 814.
In detection and decoding step 814, attempt detection and decode this new frame or from combining step 812
Combined frames.In checking procedure 816, verify the CRC of the frame of this decoding.If detection and decoding step
814 successes and in checking procedure 816 CRC pass through, then the method proceeds searching step 818.
In searching step 818, from decoding frame, retrieve this UE ID and number of frames.Afterwards, step is being confirmed
In rapid 820, confirm the frame of this decoding.End step 822 is ended at after the method.
When detection and decoding step 814 are failed and this CRC does not passes through in checking procedure 816, no
This frame can be decoded and the most should not confirm this frame.In checking procedure 824, this blind check receptor verification source UE
The most known.If this source UE is it is known that in storing step 826, used in transmitting according to this frame
RU stores this frame.If the frame of unsuccessful decoding is this new frame, the most individually store this new frame.If it is unsuccessful
The frame of decoding is from the combined frames in combination step 812, then store this combined frames.Alternative real
Execute in example, the frame of the original storage of this blind check receptor storage and this new frame, but do not store this combined frames.It
After, the method returns to waiting for step 804, waits new frame.When in checking procedure 816, CRC does not passes through
And during source UE the unknown of this new frame, the most do not store this frame, and the method directly returns to waiting for step 804,
Wait new frame.This blind check receptor continues to attempt to be merged with new frame by the frame of storage, until realizing successfully solving
Code.
Fig. 9 is the block diagram of an embodiment of wireless communication system 900.Wireless communication system 900 includes
Base station 910, wherein, comes from the communication of UE by reception and this communication is transmitted to the most predetermined mesh
Ground, or by receive destination be the communication of UE and this communication be transmitted to the most predetermined UE,
One or more UE, such as UE 920, UE 930, UE 940 and UE are served in this base station 910
950.With respect to the communication of base station 910, some UE can directly communicate each other.Such as, at Fig. 9
Embodiment in, UE 960 directly transmits to UE 950, and vice versa.Base station 910 is sometimes referred to as connecing
Access point, NodeB, evolved base station (evolved NodeB, eNB), controller or communication controler.
UE 920 to 960 is sometimes referred to as the station, mobile station, mobile phone, terminal, user or subscriber.
HARQ process is performed for each communication channel between UE 920 to 960 and base station 910.Additionally,
Blind check receptor can be applied to receive from other UE or the communication of base station 910 by UE 920 to 960.
Such as, base station 910 can include the NIC comprising blind check receptor, such as the NIC embodiment in Fig. 2,
UE 920 can include for the communication of base station 910 in perform HARQ process NIC, such as scheme
NIC embodiment in 1.Similarly, similar to embodiment NIC in Fig. 2, in UE 920
NIC can be additionally used in and is applied to blind check receive from arbitrary UE in base station 910 or UE 930 to 960
Communication.Similar to embodiment NIC in Fig. 1, NIC in base station 910 can be additionally used in UE
The communication of 920 to 960 performs HARQ process.
Although describing the present invention the most with reference to an illustrative embodiment, but this description is not limiting as the present invention.
Those skilled in the art is after with reference to this description, it will be understood that the various amendments of illustrative embodiment and
Combination, and other embodiments of the invention.Therefore, appended claims is intended to contain any this type of and repair
Change or embodiment.
Claims (29)
1. by hybrid automatic repeat-request (a hybrid automatic repeat request, HARQ)
Method in channel, it is characterised in that including:
Comprised the first frame of data to receptor transmission by blind check agreement；
At least part of described data and described first are comprised to the transmission of described receptor by described blind check agreement
Second frame of the information of frame.
Method the most according to claim 1, it is characterised in that the information of described first frame includes
For transmitting the Resource Unit (resource unit, RU) of described first frame.
Method the most according to claim 2, it is characterised in that described RU includes that transmission is described
The running time-frequency resource information of the first frame.
Method the most according to claim 1, it is characterised in that described second frame includes:
Comprise the data field of described part data；
Comprise the header field of the information of described first frame.
Method the most according to claim 4, it is characterised in that described second frame includes described
The cyclic redundancy check (CRC) (cyclic redundancy check, CRC) of data field.
Method the most according to claim 4, it is characterised in that the described second frame bag of described transmission
Include:
First modulation and coding are applied to described data field；
Second modulation and coding are applied to described header field, wherein, described first modulation and coding with
Described second modulation is different with coding.
Method the most according to claim 4, it is characterised in that the described first frame bag of described transmission
Include the first data field that the first modulation and coding are applied to comprises these data in described first frame, institute
State described second frame of transmission and include being applied to the second modulation and coding the described header field of described second frame,
Wherein, described first modulation and coding are modulated from described second and encode different.
Method the most according to claim 1, it is characterised in that described first frame lacks header.
Method the most according to claim 1, it is characterised in that described second frame includes described
The cyclic redundancy check (CRC) (cyclic redundancy check, CRC) of the information of the first frame.
10. by hybrid automatic repeat-request (a hybrid automatic repeat request,
HARQ) method received on channel, it is characterised in that including:
Detected by blind check and attempt to decode the first frame comprising data；
The second frame of the information of at least part of described data and described first frame is comprised by blind check detection；
Decode the information of described first frame and by described Information application in associating described first frame and described part
Data are also merged into combined frames；
Decode described combined frames.
11. methods according to claim 10, it is characterised in that also comprise determining that for institute
State the Resource Unit (resource unit, RU) of the channel of the first frame, wherein, the letter of described first frame
Breath includes described RU.
12. methods according to claim 11, it is characterised in that also include: when described trial
When decoding unsuccessfully, store described first frame according to described RU.
13. methods according to claim 11, it is characterised in that the information bag of described first frame
Include the serial number of described frame.
14. methods according to claim 10, it is characterised in that also include: for described first
Frame determines source user equipment (user equipment, UE).
15. methods according to claim 10, it is characterised in that also include: in described decoding
After described combined frames, confirm the reception of described data.
16. methods according to claim 10, it is characterised in that also include: when described decoding
With when applying the information failure of described first frame, that attempts as described first frame and the second frame is all possible
Source user equipment (user equipment, UE) decodes described combined frames.
17. 1 kinds of network interface controllers (network interface controller, NIC), its feature
It is, including:
Memorizer, be used for storing hybrid automatic repeat-request (hybrid automatic repeat request,
HARQ) frame data structure, including:
The data field of encoded data bits；
The header field of the information of the first frame；
With described memorizer and the processor of Emitter-coupling, it is used for:
Calculate the cyclic redundancy check (CRC) (cyclic redundancy check, CRC) to described data field
And make described emitter transmit described first frame comprising described data field and described CRC；
Fill described header field, calculate at least one for described data field and described header field
CRC, and make the transmission of described emitter comprise described data field, described header field and described at least
Second frame of individual CRC.
18. NIC according to claim 17, it is characterised in that described first frame also comprises institute
State header field.
19. NIC according to claim 17, it is characterised in that at least one CRC described is only
Including the CRC that is described data field and the calculating of described header field.
20. NIC according to claim 17, it is characterised in that the described number of described second frame
According at least part of described encoded data bits comprised in the described data field that field comprises described first frame.
21. NIC according to claim 17, it is characterised in that the information bag of described first frame
Include the serial number of described first frame.
22. NIC according to claim 17, it is characterised in that the information bag of described first frame
Include the Resource Unit (resource unit, RU) for described first frame.
23. NIC according to claim 17, it is characterised in that described HARQ frame data are tied
Structure also include pilot field, described processor be additionally operable to by pilot frequency sequence fill described pilot field and will
Described pilot field is contained in described first frame.
24. NIC according to claim 23, it is characterised in that the information bag of described first frame
Include the mark of the described pilot frequency sequence comprised in described first frame.
25. 1 kinds of network interface controllers (network interface controller, NIC), its feature
It is, including:
Blind check receptor, for receiving the first frame and the second frame, wherein, described first frame includes data word
Section and described second frame include header and at least part of described data field；
Decoder, is used for:
Attempt decoding described first frame；
Decoding the header of described second frame, wherein, described header includes the information of described first frame；
Processor, is used for the Information application of described first frame in associating described first frame and described second frame
And described part data field and described first frame are merged into combined frames.
26. NIC according to claim 25, it is characterised in that described decoder is additionally operable to solve
The described combined frames of code.
27. NIC according to claim 25, it is characterised in that the information bag of described first frame
Include the serial number of described first frame.
28. NIC according to claim 25, it is characterised in that described first frame includes institute
State the cyclic redundancy check (CRC) (cyclic redundancy check, CRC) of data field.
29. NIC according to claim 25, it is characterised in that described second frame includes institute
State the cyclic redundancy check (CRC) (cyclic redundancy check, CRC) of header.
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| PCT/CN2015/073034 WO2015124089A1 (en) | 2014-02-18 | 2015-02-13 | Harq frame data structure and method of transmitting and receiving with harq in systems using blind detection |
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